chromium/content/test/data/accessibility/mac/attributes/ax-dom-identifier-expected.txt

header.accessibilityAttributeNames.has(AXDOMIdentifier)='yes'
header.accessibilityAttributeValue(AXDOMIdentifier)='header'
header.AXChildren[0].accessibilityAttributeNames.has(AXDOMIdentifier)='yes'
header.AXChildren[0].accessibilityAttributeValue(AXDOMIdentifier)=''